Bank of America–The bankreported quarterly profit of 29 cents per share, three cents above estimates, with revenue also above consensus. Profits were helped by a sizable drop in B of A's bad loan provisions.

Comcast–The NBCUniversal parent's stock was upgraded to "overweight" from "equalweight by Morgan Stanley, which said Comcast has the best opportunity in the industry to benefit under either a consolidation or fundamentals scenario.

ExOne–The 3-D printer maker cut its 2014 revenue outlook because of delays in foreign sales, an announcement which is also impacting rival 3-D printer stocks such as 3D systems and Stratasys.

Aeropostale–The teen apparel retailer has reached out to at least two private equity firms as it explores strategic options, according to a Bloomberg report.

Aetna–Aetna has increased its 2014 revenue outlook to at least $54 billion, compared to its previous guidance of $53 billion. The increase is due in part to better than expected results for the insurer's Medicare Advantage business.

Apple –The iPhone maker's deal with China Mobilewon't be limited to iPhones, according to the company's chairman. Xi Guohua told reporters the agreement will also entail a wide variety of cooperative ventures between Apple and China Mobile.

Time Warner Cable–The company continues to resist buyout overtures from Charter Communications, saying Charter's presentation to investors about its proposal did not change the fact that it is "grossly inadequate". The cable operator said Charter is "not prepared to pay" for what Charter CEO Tom Rutledge referred to as "the biggest and best M&A option available".

Allergan–Allergan won a court victory over patents for its Lumigan glaucoma drug. A Texas judge upheld those patents through the year 2027, in a case filed against drug makers who wanted to market generic versions of the treatment.

Amazon.com–Workers at a Delaware warehouse will vote today on becoming the first-ever group of U.S. Amazon workers to be represented by a labor union.

Boeing–Machinists union chief Tom Wroblewski will retire at the end of this month because of health concerns. Wroblewski has been at the center of the fight over the union's labor contract, which was rejected in November, recently approved in a second vote, and is now the subject of controversy as some members call for a re-vote.